The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2013
Filed:
Apr. 25, 2008
Tetsuhiro Futami, Kanagawa, JP;
Yuichi Mizutani, Tokyo, JP;
Tetsuhiro Futami, Kanagawa, JP;
Yuichi Mizutani, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
This invention relates to a demodulating apparatus and a demodulating method for demodulating an input signal more quickly than before when the channels of the input signal are inverted. A correlatorcalculates a correlation value indicative of the correlation between a known delayed detection sequence made of symbols of correct delayed detection values of a known sequence inserted in the input signal and a received delayed detection sequence obtained through delay detection of the input signal. If the imaginary part of the correlation value is less than zero, a channel control sectionswitches the channels of the input signal before feeding the signal to a frame synchronization circuit. This invention can be applied illustratively to a satellite broadcast receiving apparatus.